<ul>
    <volist name="categorys" id="cate">
        <li>
            <a href="{:U('Article/index', array('category_id' => $cate['id']))}">{$cate['name']}</a>
        </li>
        <volist name="cate['subCategorys']" id="subCate">
            <li>
                <a href="{:U('Article/index', array('category_id' => $subCate['id']))}">&nbsp;&nbsp;&nbsp;&nbsp;|--{$subCate['name']}</a>
            </li>
        </volist>
    </volist>
</ul>
